| EXTENDED WASHER DIAMETER | 1.153 INCHES MINIMUM AND 1.163 INCHES MAXIMUM |
| EXTENDED WASHER THICKNESS | 0.080 INCHES MINIMUM AND 0.100 INCHES MAXIMUM |
| FASTENER LENGTH | 2.785 INCHES MINIMUM AND 2.815 INCHES MAXIMUM |
| GRIP DIAMETER | 0.6230 INCHES MINIMUM AND 0.6240 INCHES MAXIMUM |
| GRIP LENGTH | 1.865 INCHES MINIMUM AND 1.885 INCHES MAXIMUM |
| HARDNESS RATING | 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD HEIGHT | 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM |
| HEAD MINOR DIAMETER | 0.673 INCHES MINIMUM AND 0.688 INCHES MAXIMUM |
| HEAD STYLE | SPLINE EXTENDED WASHER |
| MATERIAL | STEEL COMP 4140 OR STEEL COMP E4340 OR STEEL COMP 8740 OR STEEL COMP 6150 OVERALL |
| MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.625 INCHES |
| SURFACE FINISH | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| SURFACE FINISH | 32.0 MICROINCHES GRIP |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.900 INCHES MINIMUM AND 0.950 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |
| THREAD QUANTITY PER INCH | 18 |